X Axis Idler Bearing self destructed
Hi Folks,
My Mk1 Prusa X Axis Idler Bearing self destructed today,
does anyone know the part number?
the printer is less than a year old, is this a common failure? should I order a 'bucket load' of bearings? 🙂
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: X Axis Idler Bearing self destructed
Hi Joan
I really do think that you were just unlucky. I have never had a roller bearing break since I started printing.
Just standard bearings; measure the width, inside and outside diameters and check out on eBay; they should be very cheap.
Or you could print your own: http://www.thingiverse.com/thing:44501 (if your printer was working... 🙁 )
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: X Axis Idler Bearing self destructed
hi Peter,
I am making a brass piece on the lathe as a temporary fix... hope it will last till the Mk 2 upgrade arrives.
I think the bearing is a 623zz
will order a couple for the rebuild.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: X Axis Idler Bearing self destructed
Hi Joan
Brass is good; nice and easy to machine, but I would worry about it running on a steel thread. I think you may also need to machine a steel bush otherwise any brass swarf could end up in the Z motor.
Are the bearings not 128ZZ? Unfortunately, I can't tell at the moment, as my printer is rather busy...
Peter
EDIT: Just measured the bearings; they are 4 x 10 mm with ID of 3mm and pressed into an aluminium pulley, so I think you are correct, sorry. My other printer has simple bearings without the pulley...
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: X Axis Idler Bearing self destructed
Thanks Peter,
623 is 3x10x4mm which seems to be what I need for a 3mm fixing bolt and aluminium idler spool.
it was a quick fix... so I didn't over complicate the assembly! i have aluminium couplings on top of the Z motors so they will catch any droppings...
128 is 8x12x3.5mm maybe filament pressure roller?
My printer is also busy now! 🙂
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: X Axis Idler Bearing self destructed
Joan
The 128 is from my other printer. Getting confused, sorry..
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: X Axis Idler Bearing self destructed
No problems Peter,
I too have 'Senior moments'!
🙂
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: X Axis Idler Bearing self destructed
I think I will have the same problem on my machine too soon, the x-axis has started to sound very aggressive on movements.
I've made a short Video:
Good to know what to buy as a preparation, thanks for the lookup of the bearing 🙂
Re: X Axis Idler Bearing self destructed
Mine just died on my mk3.
